Question

我一直在遵循有关如何移动和成像的教程，当我运行代码时，出现此错误：

回溯（最近通话最近）：在第142行中输入文件“ C：\ Users \ krzys \ Desktop \ Dawid Grubba \ Private \ Game creation \ Hero Jump \ Hero Jump.py” 菜单（）菜单中的文件“ C：\ Users \ krzys \ Desktop \ Dawid Grubba \ Private \ Game creation \ Hero Jump \ Hero Jump.py”，第135行按钮（“播放”，120、350、200、100，绿色，亮绿色，“开始”）文件“ C：\ Users \ krzys \ Desktop \ Dawid Grubba \ Private \ Game creation \ Hero Jump \ Hero Jump.py”，第65行，在按钮中在游戏中（） In_Game中的文件“ C：\ Users \ krzys \ Desktop \ Dawid Grubba \ Private \ Game creation \ Hero Jump \ Hero Jump.py”，第110行 y + = y_change UnboundLocalError：赋值之前引用了本地变量'y_change'

我用x替换了y，但仍然显示相同的消息，但用x。这是网站： https://pythonprogramming.net/pygame-tutorial-moving-images-key-input/

这是我的代码的主要部分，我希望您查看以回答此问题：

def In_Game_Earth_Image(x,y):
    gameDisplay.blit(Earth_Image, (x,y))

def Title():
    message("Hero Jump")

Character1=pygame.image.load("Normal Character.png")
Character1=pygame.transform.scale(Character1, (100,150))

def Starting_Charcter(x,y):
    gameDisplay.blit(Character1, (x,y))

y_change = 0

def things(thingx, thingy, thing_width, thing_height):
    gameDisplay.blit(RockImg,[thingx, thingy, 20, 20])

def button(msg, x, y, w, h, ic, ac, action=None):
    mouse = pygame.mouse.get_pos()
    click=pygame.mouse.get_pressed()

    if x+w > mouse[0] > x and y +h > mouse[1] > y:
        pygame.draw.rect(gameDisplay, ac,(x, y, w, h) )
        if click[0]==1 and action != None:
            if action=="Start":
                In_Game()
            elif action=="quit":
                pygame.quit()
                quit()
    else:
        pygame.draw.rect(gameDisplay, ic,(x, y, w, h) )

    smallText=pygame.font.Font("freesansbold.ttf", 20)
    textSurf, textRect=text_objects(msg, smallText)
    textRect.center=( (x+(w/2)), (y+(h/2)))
    gameDisplay.blit(textSurf, textRect)

    pygame.display.update()

Earth_Image=pygame.image.load("Ground_Image.png")
Earth_Image=pygame.transform.scale(Earth_Image, (900, 600))

def In_Game():
    x=50
    y=250

    In_Game_Earth_Image(0,0)

    thing_starty =265
    thing_startx= 1200
    thing_speed=-7
    thing_width=10
    thing_height=10

    Crashed=False

    while not Crashed:

        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                pygame.quit()
                quit()

            if event.type==pygame.KEYDOWN:
                if event.key == pygame.K_SPACE:
                    y_change=-20
            if event.type==pygame.KEYUP:
                if event.key==pygame.K_SPACE:
                    y_change=0

        y += y_change

        In_Game_Earth_Image(0,0)
        Starting_Charcter(x, y)
        things(thing_startx, thing_starty, thing_width, thing_height)
        thing_startx += thing_speed

        if thing_startx < -300:
            thing_startx = 1000
            thing_starty = 265

        pygame.display.update()
        clock.tick(60)

def Menu():
    Menu=True

    while Menu:
        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                pygame.quit()
                quit()

        Title()

        button("Play", 120, 350, 200, 100, green, bright_green, "Start")
        button("Quit", 570, 350, 200, 100, bright_red, red, "quit")

        pygame.display.update()
        clock.tick(15)

gameDisplay.fill(white)
Menu()

pygame.quit()
quit()

我可能犯了一个愚蠢的错误，但是我十岁的时候我对pygame有点傻。谢谢您的帮助。

在无法正常工作的Pygame代码检查中移动对象

0 个答案: